61481680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1907}}^1$

素因数の和:1964

約数の個数: 80

約数和(自身を含む): 158989824

約数和(自身を除く): 97508144

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 1907, 2015, 2480, 3224, 3814, 4030, 6448, 7628, 8060, 9535, 15256, 16120, 19070, 24791, 30512, 32240, 38140, 49582, 59117, 76280, 99164, 118234, 123955, 152560, 198328, 236468, 247910, 295585, 396656, 472936, 495820, 591170, 768521, 945872, 991640, 1182340, 1537042, 1983280, 2364680, 3074084, 3842605, 4729360, 6148168, 7685210, 12296336, 15370420, 30740840, 61481680]

約数ペア:

[(1, 61481680), (2, 30740840), (4, 15370420), (5, 12296336), (8, 7685210), (10, 6148168), (13, 4729360), (16, 3842605), (20, 3074084), (26, 2364680), (31, 1983280), (40, 1537042), (52, 1182340), (62, 991640), (65, 945872), (80, 768521), (104, 591170), (124, 495820), (130, 472936), (155, 396656), (208, 295585), (248, 247910), (260, 236468), (310, 198328), (403, 152560), (496, 123955), (520, 118234), (620, 99164), (806, 76280), (1040, 59117), (1240, 49582), (1612, 38140), (1907, 32240), (2015, 30512), (2480, 24791), (3224, 19070), (3814, 16120), (4030, 15256), (6448, 9535), (7628, 8060)]